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답안 #644068

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
644068 2022-09-23T17:46:11 Z NintsiChkhaidze 메기 농장 (IOI22_fish) C++17
0 / 100
 805 ms 154692 KB 
#include "fish.h"
#include <bits/stdc++.h>
#define pb push_back
#define ll long long
using namespace std;
 
const int N = 3005;
ll p[N][N],dp[N][5],suff[N],pref[N],sfc[N][N],prc[N][N];
vector <int> v[N];

ll max_weights(int n, int m, vector<int> X, vector<int> Y, vector<int> W) {
 
  for (int i = 0;i < m; i++){
    X[i]++,Y[i]++;
    p[X[i]][Y[i]] += W[i];
    v[X[i] + 1].pb(Y[i]);
    v[X[i] - 1].pb(Y[i]);
  }
 
  for (int j = 1; j <= n; j++)
    for (int i = 1; i <= n; i++)
      p[j][i] += p[j][i - 1];
 
  for (int j = 1; j <= n; j++){
    for (int a: v[j]){
      dp[a][0] = suff[a] - p[j][a];
      dp[a][1] = pref[a] + p[j - 1][a];
      
      if (j >= 3){
        dp[a][1] = max(dp[a][1], prc[j - 2][a] + p[j - 1][a]);
        dp[a][1] = max(dp[a][1], sfc[j - 2][a]);
      }
      
    }
    
    for (int a = n; a >= 0; a--)
      suff[a] = max(suff[a+1],max(dp[a][0],dp[a][1]) + p[j + 1][a]);

    pref[0] = dp[0][1] - p[j][0];
    for (int a =1; a <= n; a++)
      pref[a] = max(pref[a - 1],dp[a][1] - p[j][a]);

    prc[j][0] = max(dp[0][0],dp[0][1]);
    for (int a = 1; a <= n; a++)
        prc[j][a] = max(prc[j][a - 1], max(dp[a][0],dp[a][1])); 
    
    for (int a = n; a >= 0; a--)
        sfc[j][a] = max(sfc[j][a + 1],max(dp[a][0],dp[a][1]) + p[j + 1][a]);
  }
 
  ll ans = 0;
  for (int a = 0; a <= n; a++)
      ans=max({ans,dp[a][0],dp[a][1]});
  return ans;
}

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 726 ms 149592 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Runtime error 770 ms 154692 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 805 ms 143824 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 468 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Incorrect 0 ms 340 KB 1st lines differ - on the 1st token, expected: '8866', found: '7755'
6 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 468 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Incorrect 0 ms 340 KB 1st lines differ - on the 1st token, expected: '8866', found: '7755'
6 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 468 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Incorrect 0 ms 340 KB 1st lines differ - on the 1st token, expected: '8866', found: '7755'
6 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 805 ms 143824 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 726 ms 149592 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -